Hydrodynamic model of amoeboid movement

  • Subirana J
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A hydrodynamic theory of the flow produced by active shear in amoebae is developed. Active shear is defined as the movement induced in a fluid at the interface with a resting solid.The fluid acquires a velocity at the interface, which is transmitted to the rest of the liquid through the shearing forces due to viscosity. The monopodial movement of amoebae can be explained by this mechanism, if it is assumed that active shear appears at the surface of the gel tube. According to this model, the production of motive force in amoebae is located in the central region of the cell, whereas other theories consider it to be located in the front or tail. A similar mechanism may originate other types of movement in different biological systems. In this paper, their relative efficiency is quantitatively compared. © 1970.

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  • Juan A. Subirana

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